DALLAS (AP) -- A letter from the Supreme Court's doctor says Antonin Scalia suffered from coronary artery disease, obesity and diabetes, among other ailments that probably contributed to the justice's sudden death. Presidio County District Attorney Rod Ponton cited the letter Tuesday, when he told The Associated Press there was nothing suspicious about the Feb. 13 death of the 79-year-old jurist. He said the long list of health problems made an autopsy unnecessary.